{"cve":"CVE-2026-68400","nvd":{"published":"2026-08-10T13:20:33.487","modified":"2026-10-21T13:19:29.173","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Fix Endpoint Memory Access Descriptor offset calculation\n\nUse the descriptor's `ep_mem_offset` to calculate the start of the endpoint\nmemory access array and to comply with the FF-A spec instead of defaulting\nto `sizeof(struct ffa_mem_region)`.\nThis requires moving `ffa_mem_region_additional_setup()` earlier in the setup\nflow.\nAlso, add sanity checks to ensure the calculated descriptor offsets do not\nexceed `max_fragsize`.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://git.kernel.org/stable/c/6e902bea625b710f8bf2f40b4ae4b14fa6a33f13","https://git.kernel.org/stable/c/8ef18f0ab3c0ec1eac77289f5a542bd96a8a6d66","https://git.kernel.org/stable/c/b39b08e6bee812514b449dc874076890e6b871a0","https://git.kernel.org/stable/c/b4d961351aa84fdf0148783fb1f3a1391b8a0adb"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-68400","score":0.00128,"percentile":0.02471,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}